DD always awoke at that time, and we could get her to fall back asleep until 7:30 or 8 (were late risers ourselves and didn't have to get her anywhere until 9; she foes to bed at 8). Initially, we gave her milk in a sippy cup, then switched to water, then to just comforting her. I know the milk thing is bad but it's a part of a long story/struggle of her sleep routine, and anyways, it worked. It is a hugely powerful bribe (all the best bribes are a little bit evil I guess). She was in Her own room at that point, but had been since about 1. We also used black-out shades on her windows, and a fan running. If we were all up in the household, I don't think it would work. And if she's excited (like on vacation at her grandmothers house) she's up then regardless.